#if 1
#include "stdio.h"

int main(){
	char ch1,ch2;
	ch1 = 'a';
	ch2 = 'B';
	printf("ch1 = %c,ch2 = %c\n",ch1 - 32,ch2 + 32);
	printf("ch1 + 200 = %d\n",ch1 + 200);
	printf("ch1 + 200 = %c\n",ch1 + 200);
	printf("ch1 + 256 = %d\n",ch1 + 256);
	printf("ch1 + 200 = %c\n",ch1 + 256);
	return 0;
}
#endif
